Fault tracing
The indications given during the normal operation of the Safe torque off function are
selected by drive control program parameter
31.22
.
The diagnostics of the Safe torque off function cross-compare the status of the two STO
channels. In case the channels are not in the same state, a fault reaction function is
performed and the drive trips on an “STO hardware failure” fault. An attempt to use the
STO in a non-redundant manner, for example activating only one channel, will trigger
the same reaction.
See the firmware manual of the drive control program for the indications generated by
the drive, and for details on directing fault and warning indications to an output on the
control unit for external diagnostics.
Any failures of the Safe torque off function must be reported to ABB.
The Safe torque off function 221
Summary of Contents for ACS880-11
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 11 drives Hardware manual ...
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Page 95: ...R6 R8 IP21 R6 R8 IP55 Electrical installation IEC 95 ...
Page 103: ...R6 1 5 N m 0 5 N m Electrical installation IEC 103 ...
Page 104: ...R8 1 5 N m 0 5 0 6 N m 104 Electrical installation IEC ...
Page 116: ...R6 R8 UL Type 1 R6 R8 UL Type 12 116 Electrical installation North America NEC ...
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Page 154: ... Fan arrow must point up 154 Maintenance ...
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Page 181: ... Package dimensions R6 R3 R8 Technical data 181 ...
Page 202: ...R3 IP21 UL Type 1 3AXD50000045323 202 Dimension drawings ...
Page 203: ...R3 Option B056 IP55 UL Type 12 3AXD50000045322 Dimension drawings 203 ...
Page 204: ...R6 IP21 UL Type 1 3AXD50000045353 204 Dimension drawings ...
Page 205: ...R6 Option B056 IP55 UL Type 12 3AXD50000045352 Dimension drawings 205 ...
Page 206: ...R8 IP21 UL Type 1 3AXD50000047667 206 Dimension drawings ...
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Page 225: ... Declarations of conformity The Safe torque off function 225 ...